A year has passed since the battle at the Sanctuary, and Subaru has been spending fulfilling days united with Emilia's camp. However, his peaceful everyday life ends with the arrival of a single letter.

After the incident in the main square, Priestella has fallen into chaos and Emilia has been kidnapped. Now it's up to Subaru and the others to rescue Emilia and the city.

Subaru and his comrades find themselves in a dire situation after the city was taken over by the Sin Archbishops. Now, they are devising a plan to first reclaim the city hall...

Otto and Beatrice battle Gluttony, the last of the Sin Archbishops terrorizing Priestella.